Ventilating apparatus



(N9 MOde I.)

J. M. GARFIELD.

VENTILATING APPARATUS.

Patented Sept. 21,1886.

v No. 349,491.

N. PETERS, P'w

UNITED STATES PATENT OFFICE.

-JOHN MORRIS GARFIELD, OF GALVESTON, TEXAS.

VENTlL-ATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 349,491, dated September 21, 1886.

Application filed November 21, 1885. Serial No. 183,571.

(No model.)

To all whom it may concern..- I

Be it known that I, JOHN MORRIS GARFIELD,

a citizen of the United States, residing at Galveston, in the county of Galveston and State of Texas, have invented a certain new and useful Improvement in Ventilators; and I do herebydeclare that the following is a full, clear, and exact description of the same.

This invention is designed for ventilating rooms, ships, &c. and it consists in the construction, novel arrangement, and adaptation of devices, as will be hereinafter more fully set forth and claimed.

In the. accompanying drawings, Figure 1 is a view of a section ot'a room showing my improved ventilation apparatus in an operative position.- Fig. 2 is a plan view of the fan and its casing. Fig. 3 is a plan view of the operating-gear. Fig. 4 is a side view of the same, and Fig. 5 is a view of the weight.

Referring by letter to the said drawings, A

indicates a portion of a room in which B is the ceiling, and C the upper floor.

Above the center of the room and to the ceilingthereof I arrangea fan-casing, D,which is open on its under side and communicates at its upper side with air-ducts G, leading therefrom and between the floor and ceiling, as shown, to the outside of the building, whereby fresh and pure air may be conducted to a room and discharged thereinby means of a fan, as

will be presently explained.

Above the fan-casing and between the ceiling and floor is arranged on suitable plates a system of gearing, E, which may be similar to an ordinary clock gear-in the present instance there being a large number of gearing employed, so as to avoid frequent winding of the weight. ing is a pinion, a, which receives its motion therefrom, and from this pinion through the ceiling extends a fixed shaft, b, which is secured at-its lower end to the fan-blades. This fan is of substantially 8 form in outline, and so arranged as to draw the fresh air from the ducts G and forcibly discharge the same into a room or other compartment. One of the gears F is provided with a fixed drum, H,

In the center of the nest of geararound which passes an endless chain or rope, I,-which imparts motion to the gearing, from whence it is communicated to the fan-shaftand fan. This rope I passes from the drum H in a horizontal position between the ceiling and floor to and over a pulley, J, which is journaled at the one edge thereof, and from this pulley to an upper pulley, K, journaled above the pulleyJand between the walls of the build-- ing, over a drum, L, which is also journaled between the walls and at a convenient point to be reached by a person in the'r0on1, and thence over a pulley, M, which may be beneath the lower floor or in the cellar of a building, the rope being carried back over the same course, so as to be made endless. To this endless rope, betweenthe vertical walls, is secured a weight, N, which is designed to operate the gearing and fan, the gearing being so arranged, as before described, that the fan may run for any desired time after the weight has been wound up.

The drum L is provided with a crank, P, for turning the same, which crank may be removable.

While I have described my invention as being applied to a room of a building, it is obvious that the same may be arranged on ships or other places, and a continuous current of fresh air drawn in for ventilation.

Having described the invention, what I claim, is

1. The combination, .with a fan-casing, constructed and arranged as described, of the fan arranged therein, the gearing placed above the fan, the airducts leading to the fan-chamber, the endless weighted chain'or cord, and drums and pulleys arranged substantially as specified.

2. In a ventilating apparatus, a fan-cham- 

